Electron transfer from NADH or FADH2 to oxygen generates a proton gradient across the mitochondrial membrane. Electrons from NADH result in more protons being pumped across to form the gradient than electrons from FADH2. Calculate the free energy change, ΔG∘′, for the reduction of O2 with FADH2. Round your answer to the nearest whole number.

ΔG∘′ = -200.68kj/mol

Explanation:

check the attachment for explanations

Reduction reaction of O2 with FADH2

FADH2 + 1/2 O2 → H2O + FAD+

Half cell reaction;

Reduction of half reaction; 2H+ +  1/2 O2  +2e- → 2H2O( at cathode)

oxidation half reaction,

FADH2 → FAD+ 2H+ + 2e- ( at anode)

E°Cell = E°cathode - E°anode

E°Cell =  +0.82 -(-0.22)

E°Cell = 1.04v

ΔG∘′ =  -nf E°cell

ΔG∘′ =  -2 x96.48 kj/mol/ v x 1.04v

ΔG∘′ = -200.68kj/mol

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.